Machine for extracting spokes from hubs of wheels



(No Model.)

' 'J., H'. DAVIS. MACHINE FOR BXTRAGTING SPOKES FROM HUBS or WHEELS.

'No. 520,258. Patented May 22, 1894.

075mg: .17 Zea/s,

1y 5:; [dbl-11:51,

Hm par;

UNITED STATES PATENT OFFICE.

JAMES H. DAVIS, OF SEOANE, PENNSYLVANIA.

MACHINE FOR EXTRACTING SPOKES FROM HUBS OF WHEELS.

SPECIFICATION forming part of Letters Patent No. 520,258, dated May 22,1894.

Application filed April 4, 1893- Serial No. 469,002- (N 11105611) To allwhom it may concern:

Be it known that 1, JAMES H. DAVIS, of Secane, Delaware county, andState of Pennsylvania, have invented a certain new and usefulImprovement in Machines for Extracting Spokes from the Hubs of Wheels,of which the following is a full, clear, and exact description.

My invention has for its object the construction of a machine forextracting spokes from the hubs of vehicle wheels, when from any causeone or more spokes are to be replaced by new ones, and this object Iattain in the manner more fully set forth hereinafter, reference beinghad to the accompanying drawings, in which Figure l is a perspectiveView of a spoke extracting device constructed in accordance with myinvention, showing it in position on a wheel hub. Fig. 2 is an elevationof the same, and Fig. 3 is an elevation partly in section, of a somewhatcheaper construction, also embodying my invention.

Referring to the drawings H represents the hub of a vehicle wheel havingthe usual spokes, only one of which, however, has been illustrated.

The machine comprises a standard A, in the form of an inverted U, theends of which converge so that they may enter between the spokes asshown or if necessary the standard maybe turned at a right angle to theposition shown in the drawings so that the feet will rest on or near theends of the hub. In the upper cross bar of this standard is a threadedorifice to which is adapted a screw threaded rod, B, secured by anysuitable means, preferably adjustable, carrying at its upper end asuitable handle, as-B', by which it may be turned. The form of handlemay be varied to suit the work. The lower end of this rod, B, has anannular groove, 1), which fits the recessed ends, c, of clutching jaws,O, terminating at their lower ends in inwardly projecting fingers, c,which may be square as in Figs. 1 and 2 to engage an auxiliary ring onthe spoke, or may be in the form of sharp teeth adapted to engagedirectly with the spoke. These two jaws, O, are, after being adjusted,forced toward each other by a bolt, d, and nut, 61', so that they mayfirmly engage the spoke.

In practice I have found that the form of machine illustrated in Fig. 3acts eifectively with spokes of some classes, but generally I prefer toemploy the auxiliary ring, 6, fitting tightly against the spoke andheldin position bya piu,f, passing entirely through the spoke, immediatelyabove the ring.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. The combination of the standard of U shape form, a threaded rodadapted to an opening in said standard, opposite detachable clutchingjaws having their upper ends recessed and adapted to said rod and theirlower ends being adapted to engage the spoke to be extracted, and meansfor forcing said jaws toward each other to effect their engagement withthe rod and with the spoke to be extracted, substantially as specified.

2. The combination of the standard, A, having a screw threaded orificein its upper portion, a vertically disposed screw threaded rod, B,adapted to said screw threaded orifice, there being an annular groove,12, at or near the lower end of said rod, detachable clamping jaws, 0,having at their upper ends inwardly projecting recessed lugs, 0',adapted to engage in the annular groove, b, inwardly projecting spurs orlugs, c, on the lower ends of said clamping jaws, a transverse screwthreaded bolt, d, extending through openings formed in said clampingjaws and a nut, d,

provided upon said bolt, d, for positively securing the jaws inposition, substantially as specified.

In witness whereof I have hereunto set my hand this 30th day of March,A. D. 1893.

JAMES H. DAVIS. Witnesses:

HORACE PETTIT, J. BAYARD HENRY.

